Apparatus for mixing and containing liquids.



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W @QZAAAYM UNITED STATES PATENT OFFICE.

rrmnnnrcxrnnny, or KENosH A', WISCONSIN, ASSIGNOR Io THOMAS B. JEFFERY, of

KENOSHA, WISCONSIN..

To a ll whom it may concern: V

Be it known that I, FREDERICK PURDY, a

citizen of the United States, residing at Kenosha, county of Kenosha, State of W1sconsin, have invented a certain new and useful Improvement in Apparatus for Mixing and Containing Liquids, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

[My invention has for its object: to provide a simple and novel apparatus whereby two liquids may be automatically mixed in predetermined proportions regardless of the quantities in which one of said liquids is supplied. I

The various features of novelty whereby my invention is characterized will hereinafter he pointed out: .with particularity in the claims; but, for a full understanding of my invention and of its object and advantages, reference may be had to the following detailed description taken in connection with the accompanying drawing,

wherein:

Figure 1 is a view partly in'section and partly in side elevation, showing one-form of my improved apparatus, the condition being that wherein one of the liquids has been supplied and before the introduction of the other liquid; Fig. 2 is a view similar to F ig, 1, showing the condition after the second liquid has been supplied; Fig. 3 is a view similar to Figsjl and 2, showing the condition after a portion:of the mixture has been withdrawn; andFig. 4 is a fragmentary View partly in side elevation and partly in section showing a modification. I

:. In my application, Serial No. 529,258,

. filed on even date herewith, I have disclosed 4 a novel form of apparatus for automatically mixing together in predetermined proporliquid fuel, such as gasolene, without being limited to these particular liquids. The present invention relates to the same art and has to do particularly witht-he supply Specification of Letters Patent.

ma a May 23,1911; I

Application filed. November 22, 1909. Seria1No. 5 29,259.

of one of the liquids when and in the quantities desired. 2

Referring to the drawing, A represents a main reservoir for containing one of the liquids, to which I shall hereafter refer as gasolene; V d

Bis an auxiliary reservoir for containing the second liquid, to which I shall hereafter refer as oil.

iG is a closed chamber which opens into the main reservoir adjacent to thebottom thereof through an opening 0. -The auxiliary reservoir is closed at the top' and communicates with the chamber through a conduit'D, which passes from the top of the auxiliary reservoir to the top of the chamber. 2

E is a tube which extends from the top of theauxiliary reservoir toward the bot tom where it opens into the auxiliary reservoir.

F is a hood into which the upper end of the tube E opens, and G is an overflow pipe leading from the hood into the main reservoir. 7 I 1 H is a vessel which communicates with the hood through a tube 1.. I

K is an air tube which opens into the hood at a lower level than the tube I and extends upwardlyv through the bottonr of the vessel.

L is asupply tank 'detachably supported within the vessel H and having an outlet Z in the bottom thereof. 7 M is a valve adapted to close the outlet Z when free to do so, as long as the tank occupies its normal upright position. The parts are so proportioned that when the tank is placed in. position, the end of the air tube strikes the valve and opens it, the upper end of the tube finally entering the top of the tank. 1

Assuming thatthe supply tankis full of oil and the main and auxiliary reservoirs are empty: As soon as the supply tank is placed in position oil flows through the outlet Z, through the tube I and thence'through the hood Fand the tube E into the oil reservoir.

voir will continue until the reservoir is full The air in the reservoir will be dispelled through the conduit D and-through and the oil has reached a level in the hood I transmitting agent between the gasolene which will seal the end of the air pipe. Since air can no longer flow into the supply tank, no oil will flow therefrom. The overflow pipe G is placed at a somewhat higher level than the lower end of the air pipe so that the end of the air pipe will be sealed before oil can begin to overflow into the main reservoir. The condition is now that illustrated in Fig. 1.

When the gasolene is poured into the main reservoir through the inlet N it begins to flow into the lower end of the closed chamber and forces the air upwardly into the top of the auxiliary reservoir, displacing some of the oil in the reservoir and forcing it upwardly through the tube E, hood F and overflow pipe G. This discharge of the oil from the auxiliary reservoir continues as the gasolene rises in the main reservoir until, when the main reservoir is full, the auxiliary reservoir will have been emptied to a point adjacent to the lower end of the tube E. This condition is illustrated in Fig. 2. During the filling of the main reservoir, the oil in the hood has remained at or above the level which will effect the sealing of the mouth of the air pipe so that no more oil is supplied to the auxiliary reservoir after it has become filled. As soon as withdrawal of the mixture from the main reservoir begins, loweringthe liquid level in the main reservoir, the head of the oil above the oil level in the reservoir becomes too great to be supported by the head of the mixture in the main reservoir and consequently there is a backflow of oil through the tube E and into the reservoir. This backfiow continues until a state of equilibrium is reached and as soon as it has become sulficient to uncover the mouth of the air pipe, oil will again flow from the supply tank. As the main reservoir is emptied, the backflow of oil in the auxiliary reservoir continues, the supply port being intermittently opened and closed until finally, when the main reservoir has become empty, the auxiliary reservoir will again be full, as shown in Fig. 1.

The supply tank is preferably made much larger than the auxiliary reservoir so that it will afiord a sufiicient supply of oil to give the desired proportion between the oil and the gasolene during several fillings of the main reservoir. It will be seen that after the main reservoir has been partially emptied it may again be filled without destroying the relation between the oil and the gasolene in the mixture for, whenever gasolene is poured into the main reservoir, there will be a proper amount of oil transferred from the auxiliary reservoir to maintain the desired proportion between the oil and gasolene in the main reservoir.

In the arrangement shown, I have illustrated an apparatus wherein the pressuretion.

and the oil in the auxiliary reservoir 1s confined air; but it will, of course, be understood that any other suitable agent may be substituted for the air. I have also shown the auxiliary reservoir placed directly above the closed chamber but it will, of course, be understood that this is simply a matter of choice and not of the essence of my inven- The closed chamber is so proportioned that its volume is approximately equal to the volume of the oil which it is desired to mix with a quantity of gasolene which will approximately fill the main reservoir so that when the main reservoir is full the gasolene will rise within the closed chamber to the top thereof, making it possible for a head of oil equal to the difierence in the heights of the oil columns within and without the closed chamber to be maintained above the level of the oil in the auxiliary reservoir regardless of the actual height of the gasolene in the main reservoir.

In Fig. 4: I have shown a modification wherein the air and the oil fiow through the same pipe between the auxiliary reservoir and the oil tank. The pipe I which leads from the bottom of the vessel H is shorter and also larger in diameter than the pipe I in the other form. The mouth of this pipe is below the inlet to the overflow pipe G As long as the level X of the liquid in the hood F does not rise above the top of the mouth of the pipe I air will pass upwardly through this pipe so as to displace oil in the supply tank. Consequently when the oil level drops in the conduit so as to make an addition necessary, oil will flow from the supply tank although not as freely as in the other arrangement.

While I have described in detail only a single form of my invention, I do not desire to be limited to this particular form, but intend to cover all constructions and arrangements of parts which fall within the terms employed in the definitions of my invention constituting the appended claims.

l Vhat I claim is:

1. In an apparatus of the character described, a main reservoir, an auxiliary reservoir, a conduit leading from the interior of the auxiliary reservoir and opening into the main reservoir, means for automatically and progressively displacing liquid in the auxiliary reservoir and forcing it into the main reservoir as liquid is poured into the main reservoir, a tank for containing liquid and an air pipe and a liquid supply pipe leading from said tank to said conduit, the air pipe opening into the said conduit at a point below the outlet from the conduit into the main reservoir.

2. In an apparatus of the character described, a main reservoir, a closed auxiliary reservoir, a chamber communicating at its lower end with the bottom of the main reservoir, a pressure-transmitting agent between said chamber and the auxiliary reservoir, a discharge conduit extending downwardly from the top of the auxiliary reservoir and communicating with the interior thereof at a point considerably below the top, a supply tank, an air pipe and a supply pipe extending from said tank and connected with said conduit, and an overflow pipe leading from the conduit at a point above the mouth of the air pipe and opening into the main reservoir.

3. In an apparatus of the character described, a main reservoir, a closed auxiliary reservoir, a closed chamber communicating at its lower end with the bot-tom of the main reservoir, a pipe connecting the top of said chamber with the top of said auxiliary reservoir, a discharge conduit extending downwardly from the top of the auxiliary reservoir and communicating with the interior thereof at a point considerably below the top, a supply tank, a pipe extending from and progressively displacing liquid in the auxiliary reservoir and forcing it into the main reservoir as liquid is poured into the main reservoir, a tank for containing liquid, and a pipe extending from the said tank and opening into the conduit at a point below the outlet from the conduit into the mainreservoir.

I In testimony whereof, I sign this specification in the presence of two witnesses.

FREDERICK PURDY.

Copies of this patent may be obtained for five cents each, by addressing Washington, D. C. I

the Commissioner of Patents, 

